| 后固化对树脂传递模塑成型复合材料性能影响监测 |
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| 引用本文： | 卢少微,张海军,高禹,王继杰,冷劲松.后固化对树脂传递模塑成型复合材料性能影响监测[J].光电子．激光,2012(6):1120-1125. |
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| 作者姓名： | 卢少微 张海军 高禹 王继杰 冷劲松 |
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| 作者单位： | 沈阳航空航天大学航空航天学部;沈阳航空航天大学航空航天学部;沈阳航空航天大学航空航天学部;沈阳航空航天大学航空航天学部;哈尔滨工业大学复合材料研究所 |
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| 基金项目： | 国防基础科研(A352010006);航空科学基金(2009ZA54001);中国博士后基金(20090450882);沈阳科学计划(F11-237-1-00,F11-264-1-26);辽宁省高等学校优秀人才支持计划(LJQ2011018)资助项目 |
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| 摘 要： | 研制了双光纤Bragg光栅(FBG)温度/应变传感器,监测二次后固化对树脂传递模塑(RTM)成型复合材料的应变自由温度、玻璃化转变温度、残余应变及热膨胀系数的影响规律,并分析模具材料对热膨胀系数的影响。实验结果表明,二次后固化后,复合材料应变自由温度和玻璃化转变温度分别从189.0℃、189.4℃增加到200.2℃、204.0℃;外层残余应变从-597.7με下降至-671.5με;外层复合材料热膨胀系数从5.248×10-6/℃下降为4.275×10-6/℃,说明后固化可显著提高复合材料性能。
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| 关 键 词： | 树脂传递模塑(RTM) 后固化 光纤Bragg光栅(FBG)传感器 应变自由温度 玻璃化转变温度 残余应变 热膨胀系数 |
Monitoring the effect of post-cure on the performance of RTM processing composites |
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| LU Shao-wei,ZHANG Hai-jun,GAO Yu,WANG Ji-jie and LENG Jin-song.Monitoring the effect of post-cure on the performance of RTM processing composites[J].Journal of Optoelectronics·laser,2012(6):1120-1125. |
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| Authors: | LU Shao-wei ZHANG Hai-jun GAO Yu WANG Ji-jie and LENG Jin-song |
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| Affiliation: | Department of Aerospace,Shenyang Aerospace University,Shenyang 110136,China;Department of Aerospace,Shenyang Aerospace University,Shenyang 110136,China;Department of Aerospace,Shenyang Aerospace University,Shenyang 110136,China;Department of Aerospace,Shenyang Aerospace University,Shenyang 110136,China;Center for Composite Materials,Harbin Institute of Technology,Harbin 150001,China |
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| Abstract: | The performance of composites manufactured by resin transfer molding(RTM) processing can be monitored by fiber Bragg grating(FBG) sensor during post-curing procedure.The effects of post-curing on the strain free temperature,glass transition temperature,residual strain,coefficient of thermal expansion of the composites are monitored by the temperature/strain double-FBG sensors.The effect of mould material on the coefficient of thermal expansion is also discussed.The test results indicate that the strain free temperature and the glass transition temperature change from 189.0 ℃ and 189.4 ℃ to 200.2 ℃ and 204.0 ℃,respectively,the outer residual strain changes from-597.7 με to-671.5 με,the outer coefficient of thermal expansion changes from 5.248×10-6/℃ to 4.275×10-6/℃ after the post-curing process.Therefore,post-cure can improve the performance of composites. |
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| Keywords: | resin transfer molding(RTM) post-cure fiber Bragg grating(FBG) sensor strain free temperature glass transition temperature residual strain coefficient of thermal expansion |
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